Fix backticks.

Author: kevinbackhouse

Apache/Struts/CVE-2018-11776/README.md

@@ -31,7 +31,7 @@ Start the container:
 docker run --rm --network struts-demo-network --ip=172.16.0.10 -h struts-server --publish 8080:8080 -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix -i -t struts-server
 ```
 
-Note: the `--publish`, `-e`, and '-v' command line arguments are optional. The `--publish` argument exposes port 8080 so that we can open the Struts showcase app in a web-browser. The `-e` and `-v` arguments enable the container to access X11, which is necessary for popping a calculator.
+Note: the `--publish`, `-e`, and `-v` command line arguments are optional. The `--publish` argument exposes port 8080 so that we can open the Struts showcase app in a web-browser. The `-e` and `-v` arguments enable the container to access X11, which is necessary for popping a calculator.
 
 Inside the container, start Struts and sshd. The reason for starting sshd is that we are going to use it to get a shell on the Struts server. We think it is realistic for sshd to be running because it is very widely used by system administrators for remote access.